The register
The register lists Bisnow Ltd in London as a licensed sponsor on Skilled Worker, an entry that goes back to at least 2026. Rating on the current register: Worker (A rating).
At Companies House the business is Bisnow Ltd (company number 10241520), a private limited company incorporated in 2016, 10 years ago. Registered office: Suite A, 1-3 Canfield Place, London, NW6 3BT, NW6 3BT. By its SIC codes the business is in it, software and media.
Holding a licence is the expensive, slow part done. For Bisnow Ltd the question each time is only whether the role and the pay fit the current rules, and that is checked per vacancy.